# Bluetooth connection to Arduino

**URL:** <https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814>\
**Category:** Questions about Thunkable X\
**Tags:** beginner, arduino\
**Created:** [December 27, 2020, 5:45pm UTC](https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814 "2020-12-27T17:45:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![scharfet](https://avatars.discourse-cdn.com/v4/letter/s/ac8455/32.png) [@scharfet](https://community.thunkable.com/u/scharfet)\
**Post date:** [December 27, 2020, 5:45pm UTC](https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814/1 "2020-12-27T17:45:21Z")

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I am a total newby, so please excuse my simple questions.

I need to create an App to connect with Arduino via Buletooth in order to send start and stopp commands.

I found this page:

> [@Multitouch. Android send order ON/OFF to LEDs in Arduino by Bluetooth HC-05](http://community.thunkable.com/t/multitouch-android-send-order-on-off-to-leds-in-arduino-by-bluetooth-hc-05/11813):
>
> In this web I wrote many examples of App Inventor, Bluetooth and Arduino: [http://kio4.com/appinventor/index.htm#bluetooth](http://kio4.com/appinventor/index.htm#bluetooth) In this post I present extensions about 3, 4 and 9 Multitouch: [http://community.thunkable.com/t/extension-multitouch-you-can-touch-concurrently-zones-in-screen/11659/5](http://community.thunkable.com/t/extension-multitouch-you-can-touch-concurrently-zones-in-screen/11659/5) Now we join those two projects: Android with 4 zones multitouch send order to Arduino by Bluetooth for ON/OFF 4 LEDs. You can touch several zones at once and send information to Arduino by Bluetooth for …

UPDATE:  
I tried to replicate this tutorial: [https://www.youtube.com/watch?v=sNpCTsVifo4](https://www.youtube.com/watch?v=sNpCTsVifo4)  
But when I search in “Add Components” in the left column there is mo Bluetooth component, why?

Thank you for your help!

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**Author:** ![muneer](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/muneer/32/75210_2.png) [@muneer](https://community.thunkable.com/u/muneer)\
**Post date:** [December 27, 2020, 7:28pm UTC](https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814/2 "2020-12-27T19:28:52Z")

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> [@muneer](#):
>
> I tried to replicate this tutorial: [How to use the Bluetooth LE Component on Thunkable - YouTube](https://www.youtube.com/watch?v=sNpCTsVifo4)  
> But when I search in “Add Components” in the left column there is mo Bluetooth component, why?

The tutorial was based on the old development UI. In the new UI, this component is in the Block Screen and not in the Design Screen any more.

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**Author:** ![scharfet](https://avatars.discourse-cdn.com/v4/letter/s/ac8455/32.png) [@scharfet](https://community.thunkable.com/u/scharfet)\
**Post date:** [December 27, 2020, 8:28pm UTC](https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814/3 "2020-12-27T20:28:33Z")

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How can I search publicated projects, using keywords like “bluetooth”? I could not find this option.

Can someone point me to a published project whith bluetooth connection, which I can copy, based on the NEW development UI?

Thanks!

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [November 8, 2024, 12:19pm UTC](https://community.thunkable.com/t/bluetooth-connection-to-arduino/1041814/4 "2024-11-08T12:19:23Z")

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